void AudioMixerClientData::negotiateAudioFormat(ReceivedMessage& message, const SharedNodePointer& node) {
quint8 numberOfCodecs;
message.readPrimitive(&numberOfCodecs);
std::vector<QString> codecs;
for (auto i = 0; i < numberOfCodecs; i++) {
codecs.push_back(message.readString());
}
const std::pair<QString, CodecPluginPointer> codec = AudioMixer::negotiateCodec(codecs);
setupCodec(codec.second, codec.first);
sendSelectAudioFormat(node, codec.first);
}
void AudioMixerClientData::handleMismatchAudioFormat(SharedNodePointer node, const QString& currentCodec, const QString& recievedCodec) {
sendSelectAudioFormat(node, currentCodec);
}
void AudioMixer::handleNegotiateAudioFormat(QSharedPointer<ReceivedMessage> message, SharedNodePointer sendingNode) {
QStringList availableCodecs;
auto codecPlugins = PluginManager::getInstance()->getCodecPlugins();
if (codecPlugins.size() > 0) {
for (auto& plugin : codecPlugins) {
auto codecName = plugin->getName();
qDebug() << "Codec available:" << codecName;
availableCodecs.append(codecName);
}
} else {
qDebug() << "No Codecs available...";
}
CodecPluginPointer selectedCodec;
QString selectedCodecName;
QStringList codecPreferenceList = _codecPreferenceOrder.split(",");
// read the codecs requested by the client
const int MAX_PREFERENCE = 99999;
int preferredCodecIndex = MAX_PREFERENCE;
QString preferredCodec;
quint8 numberOfCodecs = 0;
message->readPrimitive(&numberOfCodecs);
qDebug() << "numberOfCodecs:" << numberOfCodecs;
QStringList codecList;
for (quint16 i = 0; i < numberOfCodecs; i++) {
QString requestedCodec = message->readString();
int preferenceOfThisCodec = codecPreferenceList.indexOf(requestedCodec);
bool codecAvailable = availableCodecs.contains(requestedCodec);
qDebug() << "requestedCodec:" << requestedCodec << "preference:" << preferenceOfThisCodec << "available:" << codecAvailable;
if (codecAvailable) {
codecList.append(requestedCodec);
if (preferenceOfThisCodec >= 0 && preferenceOfThisCodec < preferredCodecIndex) {
qDebug() << "This codec is preferred...";
selectedCodecName = requestedCodec;
preferredCodecIndex = preferenceOfThisCodec;
}
}
}
qDebug() << "all requested and available codecs:" << codecList;
// choose first codec
if (!selectedCodecName.isEmpty()) {
if (codecPlugins.size() > 0) {
for (auto& plugin : codecPlugins) {
if (selectedCodecName == plugin->getName()) {
qDebug() << "Selecting codec:" << selectedCodecName;
selectedCodec = plugin;
break;
}
}
}
}
auto clientData = dynamic_cast<AudioMixerClientData*>(sendingNode->getLinkedData());
// FIXME - why would we not have client data at this point??
if (!clientData) {
qDebug() << "UNEXPECTED -- didn't have node linked data in " << __FUNCTION__;
sendingNode->setLinkedData(std::unique_ptr<NodeData> { new AudioMixerClientData(sendingNode->getUUID()) });
clientData = dynamic_cast<AudioMixerClientData*>(sendingNode->getLinkedData());
connect(clientData, &AudioMixerClientData::injectorStreamFinished, this, &AudioMixer::removeHRTFsForFinishedInjector);
}
clientData->setupCodec(selectedCodec, selectedCodecName);
qDebug() << "selectedCodecName:" << selectedCodecName;
clientData->sendSelectAudioFormat(sendingNode, selectedCodecName);
}